Use Pathname to determine if path is absolute

[azeey]

🦟 Bug fix

Fixes #

Summary

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

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[codecov]

Codecov Report

Merging #216 (1480d12) into ign-launch5 (aa5f470) will not change coverage.
The diff coverage is n/a.

❗ Current head 1480d12 differs from pull request most recent head e6e7805. Consider uploading reports for the commit e6e7805 to get more accurate results

@@             Coverage Diff              @@
##           ign-launch5     #216   +/-   ##
============================================
  Coverage        58.83%   58.83%           
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  Files                3        3           
  Lines              396      396           
============================================
  Hits               233      233           
  Misses             163      163           

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[nkoenig]

@azeey This has been around for a while. Do you want to close this PR? Alternatively I could take it over if you can give me some context about what you were attempting to do.

[azeey]

I was trying to get UNIT_ign/gz_TEST to run on windows. More context here. But there are additional things to fix before this is possible: support multi-config cmake builds (similar to gazebosim/sdformat#1339) and maybe standalone executables.

I think only gz-transport runs those tests on windows, so perhaps we should disable them for now until we implement standalone executables for gz-launch.

[azeey]

Closing since the changes were added in #255.